The correct statement regarding the role of religion in The Troubles in Northern Ireland is:
Religion was a dividing factor as one side was Protestant and the other Catholic.
The conflict, which spanned from the late 1960s to the Good Friday Agreement in 1998, primarily involved two communities: the predominantly Catholic Nationalists/Republicans who sought a united Ireland, and the predominantly Protestant Unionists/Loyalists who wanted to remain part of the United Kingdom. The divisions were often framed in religious terms, though political, national, and cultural identities were also significant factors in the conflict.